package com.yun.kin.blog.web.admin;

import com.yun.kin.blog.po.Type;
import com.yun.kin.blog.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

/**
 * @author jin
 * @Description
 * @Date 2021/3/3 15:34
 */
@Controller
@RequestMapping("/admin")
public class TypeController {

    @Autowired
    private TypeService typeService;

    @GetMapping("/types")
    public String list(@PageableDefault(size = 5,sort = {"id"},direction = Sort.Direction.DESC)
                                   Pageable pageable, Model model){
        model.addAttribute("page",typeService.listType(pageable));
        return "admin/types";
    }

    /**
     * 返回新增博客分类页面
     * @return
     */
    @GetMapping("types/input")
    public String input(Model model){
        model.addAttribute("type",new Type());
        return "admin/types-input";
    }

    //返回之前查到要改的记录--根据id
    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id, Model model){
        model.addAttribute("type",typeService.getType(id));
        return "admin/types-input";
    }

    /**
     * 博客分类新增--提交
     */
    @PostMapping("/types")
    public String post(@Valid Type type, BindingResult result, RedirectAttributes redirectAttributes){

        Type  t = typeService.getTypeByName(type.getName());

        if(t != null){
            result.rejectValue("name","nameError","不能添加重复的博客分类！");
        }

        if(result.hasErrors()){
            return "admin/types-input";
        }
        Type type1 = typeService.saveType(type);//保存的对象--新的分类
        if(type1 == null){
            redirectAttributes.addFlashAttribute("message","新增失败！");//新增对象为空
        } else {
            redirectAttributes.addFlashAttribute("message","新增成功！");
        }
        return "redirect:/admin/types";
    }
    //修改
    @PostMapping("/types/{id}")
    public String editpost(@Valid Type type, BindingResult result,@PathVariable Long id, RedirectAttributes redirectAttributes){

        Type  t = typeService.getTypeByName(type.getName());

        if(t != null){
            result.rejectValue("name","nameError","不能添加重复的博客分类！");
        }

        if(result.hasErrors()){
            return "admin/types-input";
        }
        Type type1 = typeService.updateType(id, type);//修改
        if(type1 == null){
            redirectAttributes.addFlashAttribute("message","更新失败！");//新增对象为空
        } else {
            redirectAttributes.addFlashAttribute("message","更新成功！");
        }
        return "redirect:/admin/types";
    }

    //删除
    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes) {
        typeService.deleteType(id);
        attributes.addFlashAttribute("message", "删除成功");
        return "redirect:/admin/types";
    }
}
